Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/31730 |
Resumo: | Polycrystalline strontium-doped lanthanum manganite (LSM) powders with 0.15, 0.22, and 0.30 mol % Sr were synthesized by the polymeric precursor route using a molar ratio of 3:1 citric acid and metal cations. The powders were characterized by Fourier transform infrared spectroscopy, thermal analysis, high-temperature X-ray diffraction to determine the crystalline perovskite phase and crystallite sizes, scanning electron microscopy for the morphological analysis, nitrogen adsorption to determine the specific surface area, and laser scattering to evaluate the particle size distribution. The LSM perovskite-type oxides containing intermediate 0.22 mol % Sr were found to exhibit a tendency to decrease in crystallite size and increase in specific surface area and, when calcined at 700–900 °C exhibited a pure phase of perovskite, had a crystallite size of about 17–20 nm and a specific surface area for 900 °C of 34.3 m2 .g-1 |
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Rabelo, Adriano AlvesMacedo, Marfran Cardoso deMelo, Dulce Maria de AraújoPaskocimas, Carlos AlbertoMartinelli, Antonio EduardoNascimento, Rubens Maribondo do2021-03-08T16:51:56Z2021-03-08T16:51:56Z2011-04-01RABELO, Adriano Alves; MACEDO, Marfran Cardoso de; MELO, Dulce Maria de Araújo; PASKOCIMAS, Carlos Alberto; MARTINELLI, Antonio Eduardo; NASCIMENTO, Rubens Maribondo do. Synthesis and characterization of La1-xSr xMnO3±δ powders obtained by the polymeric precursor route. Materials Research, [S.L.], v. 14, n. 1, p. 91-96, 1 abr. 2011. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100015&lng=en&tlng=en. Acesso em: 11 nov. 2020. http://dx.doi.org/10.1590/s1516-14392011005000018.1980-53731516-1439https://repositorio.ufrn.br/handle/123456789/3173010.1590/s1516-14392011005000018ABM, ABC, ABPolAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessPerovskitePolymeric precursorSOFCSynthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor routeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePolycrystalline strontium-doped lanthanum manganite (LSM) powders with 0.15, 0.22, and 0.30 mol % Sr were synthesized by the polymeric precursor route using a molar ratio of 3:1 citric acid and metal cations. The powders were characterized by Fourier transform infrared spectroscopy, thermal analysis, high-temperature X-ray diffraction to determine the crystalline perovskite phase and crystallite sizes, scanning electron microscopy for the morphological analysis, nitrogen adsorption to determine the specific surface area, and laser scattering to evaluate the particle size distribution. The LSM perovskite-type oxides containing intermediate 0.22 mol % Sr were found to exhibit a tendency to decrease in crystallite size and increase in specific surface area and, when calcined at 700–900 °C exhibited a pure phase of perovskite, had a crystallite size of about 17–20 nm and a specific surface area for 900 °C of 34.3 m2 .g-1engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALSynthesisCharacterization_MARTINELLI_2011.pdfSynthesisCharacterization_MARTINELLI_2011.pdfapplication/pdf1363804https://repositorio.ufrn.br/bitstream/123456789/31730/1/SynthesisCharacterization_MARTINELLI_2011.pdf29d3d22c37b07df4a2dd4c00d0e10e04MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/31730/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/31730/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTSynthesisCharacterization_MARTINELLI_2011.pdf.txtSynthesisCharacterization_MARTINELLI_2011.pdf.txtExtracted texttext/plain27976https://repositorio.ufrn.br/bitstream/123456789/31730/4/SynthesisCharacterization_MARTINELLI_2011.pdf.txtf8f812c819dbf289359b99368116bef3MD54THUMBNAILSynthesisCharacterization_MARTINELLI_2011.pdf.jpgSynthesisCharacterization_MARTINELLI_2011.pdf.jpgGenerated Thumbnailimage/jpeg1647https://repositorio.ufrn.br/bitstream/123456789/31730/5/SynthesisCharacterization_MARTINELLI_2011.pdf.jpgbbff70ef66a538c425f97658f250635eMD55123456789/317302021-03-14 05:45:58.71oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-03-14T08:45:58Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
title |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
spellingShingle |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route Rabelo, Adriano Alves Perovskite Polymeric precursor SOFC |
title_short |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
title_full |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
title_fullStr |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
title_full_unstemmed |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
title_sort |
Synthesis and characterization of La1-xSrx MnO3±δ powders obtained by the polymeric precursor route |
author |
Rabelo, Adriano Alves |
author_facet |
Rabelo, Adriano Alves Macedo, Marfran Cardoso de Melo, Dulce Maria de Araújo Paskocimas, Carlos Alberto Martinelli, Antonio Eduardo Nascimento, Rubens Maribondo do |
author_role |
author |
author2 |
Macedo, Marfran Cardoso de Melo, Dulce Maria de Araújo Paskocimas, Carlos Alberto Martinelli, Antonio Eduardo Nascimento, Rubens Maribondo do |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Rabelo, Adriano Alves Macedo, Marfran Cardoso de Melo, Dulce Maria de Araújo Paskocimas, Carlos Alberto Martinelli, Antonio Eduardo Nascimento, Rubens Maribondo do |
dc.subject.por.fl_str_mv |
Perovskite Polymeric precursor SOFC |
topic |
Perovskite Polymeric precursor SOFC |
description |
Polycrystalline strontium-doped lanthanum manganite (LSM) powders with 0.15, 0.22, and 0.30 mol % Sr were synthesized by the polymeric precursor route using a molar ratio of 3:1 citric acid and metal cations. The powders were characterized by Fourier transform infrared spectroscopy, thermal analysis, high-temperature X-ray diffraction to determine the crystalline perovskite phase and crystallite sizes, scanning electron microscopy for the morphological analysis, nitrogen adsorption to determine the specific surface area, and laser scattering to evaluate the particle size distribution. The LSM perovskite-type oxides containing intermediate 0.22 mol % Sr were found to exhibit a tendency to decrease in crystallite size and increase in specific surface area and, when calcined at 700–900 °C exhibited a pure phase of perovskite, had a crystallite size of about 17–20 nm and a specific surface area for 900 °C of 34.3 m2 .g-1 |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-04-01 |
dc.date.accessioned.fl_str_mv |
2021-03-08T16:51:56Z |
dc.date.available.fl_str_mv |
2021-03-08T16:51:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
RABELO, Adriano Alves; MACEDO, Marfran Cardoso de; MELO, Dulce Maria de Araújo; PASKOCIMAS, Carlos Alberto; MARTINELLI, Antonio Eduardo; NASCIMENTO, Rubens Maribondo do. Synthesis and characterization of La1-xSr xMnO3±δ powders obtained by the polymeric precursor route. Materials Research, [S.L.], v. 14, n. 1, p. 91-96, 1 abr. 2011. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100015&lng=en&tlng=en. Acesso em: 11 nov. 2020. http://dx.doi.org/10.1590/s1516-14392011005000018. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/31730 |
dc.identifier.issn.none.fl_str_mv |
1980-5373 1516-1439 |
dc.identifier.doi.none.fl_str_mv |
10.1590/s1516-14392011005000018 |
identifier_str_mv |
RABELO, Adriano Alves; MACEDO, Marfran Cardoso de; MELO, Dulce Maria de Araújo; PASKOCIMAS, Carlos Alberto; MARTINELLI, Antonio Eduardo; NASCIMENTO, Rubens Maribondo do. Synthesis and characterization of La1-xSr xMnO3±δ powders obtained by the polymeric precursor route. Materials Research, [S.L.], v. 14, n. 1, p. 91-96, 1 abr. 2011. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000100015&lng=en&tlng=en. Acesso em: 11 nov. 2020. http://dx.doi.org/10.1590/s1516-14392011005000018. 1980-5373 1516-1439 10.1590/s1516-14392011005000018 |
url |
https://repositorio.ufrn.br/handle/123456789/31730 |
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eng |
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eng |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
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openAccess |
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ABM, ABC, ABPol |
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ABM, ABC, ABPol |
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Universidade Federal do Rio Grande do Norte (UFRN) |
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UFRN |
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